On his waist, the bag on his front left is the old cloth carrier for the M1915 Gummimaske (replaced later by the metal canister he wears on his back left).

The bread bag, or "ration's bag" as you call it, is on his waist's front right. It really should be on his back (over the right buttock) because the way he's wearing it on that figure will really restrict his movements.

He doesn't actually carry the canva bags for the Luger Trommelmagazin. Realistically he would have just tossed the spare magazines in his grenade backs in exchange for a couple stick grenades less.

“a poor model can be saved by a great texture, but a bad texture will ruin even the most detailed model.” - James O'Donnell, Forgotten Hope mod artist